diff --git a/modules/icing/pirep_goes.py b/modules/icing/pirep_goes.py
index 371ffc307dc4148e22cbbfc4956e6a2c87f7e61e..74b6bcf2d94eab127269f1500acbed087ab577cd 100644
--- a/modules/icing/pirep_goes.py
+++ b/modules/icing/pirep_goes.py
@@ -578,7 +578,7 @@ def run_daynight(filename, filename_l1b, day_night='ANY'):
 
     path, fname = os.path.split(filename_l1b)
     fbase, fext = os.path.splitext(fname)
-    outfile_l1b = path + '/' + fbase + '_' + 'QC' + '_' + day_night + fext
+    outfile_l1b = path + '/' + fbase + '_' + day_night + fext
 
     create_file(outfile_l1b, data_dct, l1b_ds_list, l1b_ds_types, lon_c, lat_c, time_s, fl_alt_s, ice_int_s, unq_ids)